Regulatory role of calcium sulfide in ripening delay of postharvest bananas.

ABSTRACT: Hydrogen sulfide (H₂S) has been demonstrated to delay ripening and senescence in various fruits, offering great capability for postharvest preservation. However, existing application methods face several limitations, such as unstable release, difficulty in dosage control, and safety concerns, and its regulatory mechanisms in fruit systems remain unclear. In this study, calcium sulfide (CaS) was used as a slow-release H₂S donor that gradually releases H₂S through reactions with airborne moisture and carbon dioxide to treat bananas. CaS treatment significantly downregulated key ethylene biosynthetic genes and corresponding enzymes (ACO and ACS), thereby reducing ethylene production. The expression of starch-degrading and cell wall-modifying genes was also suppressed, delaying starch breakdow

SUBMITTER: Xu H 

PROVIDER: S-EPMC12466287 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature